Argentinosaurus was the biggest animal ever to walk the Earth. This gigantic plant-eater made the ground tremble with every step it took, and simply through its sheer size intimidated all but the bravest predators. Only giganotosaurus, a huge and fierce meat-eater, dared to tackle Argentinosaurus. Even then, it took a group of these predators to wear down the mighty plant-eater-and some attackers did not survive the battle.
Scute Protected: This creature's relatives had clumps of bone-like armor (called scutes) on their backs, so experts think Argentinosaurus might have had them on its body as well.
Height Advantage: Argentinosaurus was the biggest dinosaur to roam the Earth. Just its lower leg bone, from knee to ankle, measured six feet long. Scientists say the dino was 70 feet tall-about the height of a modern six-story building!
Heavyweight Bout[]
Giganotosaurus was big enough to tackle the mighty Argentinosaurus.
It's hard to imagine that there was a predator brave enough to take on a dino that was as long as half a football field and weighed as much as a fully-loaded jumbo jet, but giganotosaurus did it. In groups of up to six, this dinosaur swarmed around a towering Argentinosaurus. Each predator took bites out of the plant-eater's sides until it bled to death. To defend itself, Argentinosaurus might have used its bulky tail to knock away enemies; one direct hit could severely injure attackers and force them to give up the fight.
Weight Gain: This dino had to eat several tons of food every day, especially when it was young. While growing, experts say that Argentinosaurus would have had to gain 100 pounds every day to stay healthy.
Thunderfeet: Argentinosaurus lived in small herds, roaming through what is now South America and eating leaves from ancient pine trees. A herd's footsteps would have made the ground shake, and could be felt from hundreds of yards away.
Timeline[]
Argentinosaurus lived 112 to 93 million years ago, during the Cretaceous Period.
Trading Card[]
Trivia[]
- Not counting fictional creatures, the Argentinosaurus is the largest creature represented in the series, if going by the length from head to tail.
- Going by the max tentacle length given, the Portuguese Man-O-War is tied with the Argentinosaurus.
- Argentinosaurus is the heaviest Monsters of the Past, and the third heaviest creature in general after the Blue Whale and Right Whale.
- The argentinosaurus is featured in Animal All-Stars on Monster Mania 105.